10647821481 has 16 divisors (see below), whose sum is σ = 15497982720. Its totient is φ = 6448957520.

The previous prime is 10647821479. The next prime is 10647821491. The reversal of 10647821481 is 18412874601.

It is a cyclic number.

It is not a de Polignac number, because 10647821481 - 2¹ = 10647821479 is a prime.

It is a super-2 number, since 2×10647821481² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (10647821491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55671 + ... + 156188.

It is an arithmetic number, because the mean of its divisors is an integer number (968623920).

Almost surely, 2^10647821481 is an apocalyptic number.

10647821481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10647821481 is a deficient number, since it is larger than the sum of its proper divisors (4850161239).

10647821481 is a wasteful number, since it uses less digits than its factorization.

10647821481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213396.

The product of its (nonzero) digits is 86016, while the sum is 42.

The spelling of 10647821481 in words is "ten billion, six hundred forty-seven million, eight hundred twenty-one thousand, four hundred eighty-one".